Fatal error: Uncaught Error: Interface 'Sonata\AdminBundle\Admin\AdminExtensionInterface' not found in /home/lafaamicps/www/symfony/vendor/sonata-project/admin-bundle/Admin/AdminExtension.php:29 Stack trace: #0 {main} thrown in /home/lafaamicps/www/symfony/vendor/sonata-project/admin-bundle/Admin/AdminExtension.php on line 29